import Fastify, { type FastifyInstance } from 'fastify';
import fastifyStatic from '@fastify/static';
import { Server } from 'socket.io';
import { resolve } from 'node:path';
import { existsSync } from 'node:fs';
import { createStatsStore } from './stats-store.js';
import { systemClock, type Clock } from './clock.js';
import { createAnalyticsStore } from './analytics-store.js';
import { Analytics } from './analytics.js';
import { registerAdmin } from './admin.js';
import { createGameSessionStore } from './game-session-store.js';
import { createRoomStore } from './rooms.js';
import { registerAnalyticsApi, registerGameApi, registerRoomApi } from './game-api.js';
import { registerSignaling, type RtcServerOptions } from './signaling.js';
import { createRankedService } from './ranked-service.js';
import { registerRankedApi } from './ranked-api.js';
export interface ServerOptions { mongoUri: string; databaseName: string; clientDirectory: string; clock?: Clock; adminUser?: string; adminPassword?: string; environment?: 'production' | 'test'; rtc?: RtcServerOptions }
export async function createGameServer(options: ServerOptions): Promise<FastifyInstance> {
  const store = await createStatsStore(options);
  const app = Fastify({ logger: false, bodyLimit: 16384 });
  const io = new Server(app.server, { maxHttpBufferSize: 16384 });
  const clock = options.clock ?? systemClock;
  const gameSessions = await createGameSessionStore(store.db, () => clock.now(), options.environment ?? 'production');
  const peerRooms = await createRoomStore(store.db, () => clock.now());
  const ranked = await createRankedService(store.db, clock, options.environment ?? 'production');
  const signaling = registerSignaling(io, gameSessions, peerRooms, options.rtc, () => clock.now());
  registerGameApi(app, gameSessions, store, ranked);
  registerRoomApi(app, gameSessions, peerRooms, signaling, ranked);
  registerRankedApi(app, gameSessions, ranked);
  const analyticsStore = await createAnalyticsStore(store.db);
  const analytics = new Analytics(analyticsStore, clock, options.environment ?? 'production');
  registerAnalyticsApi(app, gameSessions, analytics);
  app.addHook('onRequest', async request => { if (!request.url.startsWith('/api/admin/') && !request.url.startsWith('/admin/')) analytics.httpRequests++; });
  io.use((_socket, next) => next(new Error('USE_SIGNALING')));
  app.get('/health', async () => ({ status: 'ok' }));
  const directory = resolve(options.clientDirectory);
  await app.register(fastifyStatic, { root: directory, serve: false });
  if (existsSync(directory)) {
    app.get('/', (_request, reply) => reply.sendFile('index.html'));
    app.get('/assets/*', (request, reply) => {
      const path = (request.params as { '*': string })['*'];
      if (!/^[a-zA-Z0-9_.-]+$/.test(path)) return reply.code(404).send();
      return reply.sendFile(`assets/${path}`);
    });
  }
  registerAdmin(app, store, analytics, clock, { user: options.adminUser, password: options.adminPassword }, directory);
  app.addHook('preClose', async () => {
    await ranked.close();
    await analytics.close();
    await new Promise<void>(done => io.close(() => done()));
  });
  app.addHook('onClose', async () => { await store.close(); });
  return app;
}